By signing a listing agreement, the agent agrees to find a property owner the best offer for their property in exchange for a commission. The agreement must have a start and end date.An Ohio real estate listing agreement is used to grant real estate agents the right to list and sell a property on behalf of the property's owner. Curious how to fill out a listing agreement? This video covers the Tennessee Realtor Form Exclusive Right To Sell Listing Agreement. For buyers, the agreement must be signed before touring a home with their REALTOR®. Answer: Under Ohio law, all negotiations must take place with a broker who has an exclusive listing with a seller. A listing agreement is a contract between the seller of a home and a real estate agent. These listing agreements need to be put in writing, which is a law in most U.S. states. The time period of the listing agreement. 6.